This Scotchlok 3M T/Y Connector has a spring inside that guarantees a permanent and trustworthy cable connection. Its cover is made from insulated and flame-retardant PVC. These connectors are compact, heat resistant and are an excellent solution for making connections, be it for flexible or rigid cables. They can be used for voltages of up to 600V (Building wire) or 1000V (Lighting). This T/Y connector can be used to connect cables in which the sum of their sizes ranges from 1 to 5mm². Reference: CTMF-3M-7100136955-GS